Summary
International Symposium on Antennas and Propagation
2010
Session Number:3TA3
Session:
Number:3TA3-4
Significance of Ground Plane Size and Height in Small PIFA
Hattan F. AbuTarboush, R. Nilavalan, T. Peter, S. W. Cheung,
pp.-
Publication Date:2010/11/23
Online ISSN:2188-5079
Summary:
Planar Inverted-F Antennas are widely used in a variety of communication systems especially in mobile phone handsets due to low profile, light weight, easy integration and easy to manufacture [1]. The ground plane of PIFA is an important factor and can play an important role to enhance the performance of the antenna as discussed in [2]. However, if the ground plane is acted as an antenna, the effect of the user hand is likely to degrade the antenna performance when the antenna is placed inside the mobile phone as well as causing several practical engineering problems [3]. In some designs, the location of the antenna on the substrate is also important to be considered as it can enhance the bandwidth of the antenna to few more percentages as shown in a recent study [4]. In this paper, a relatively small and thin PIFA that can support three frequency bands at 2.09 GHz, 3.74 GHz and 5 GHz with achievable bandwidths of 10%, 8.8% and 11% respectively is first presented. Then the effect of different ground plane dimensions and the significance of the physical height of the antenna from the ground plane are studied. The measured return loss, radiation patterns, gain and radiation efficiency are characterized.